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Mrs. Post wants to surprise Frisbee with a new backyard to play in! She needs to build a fence and buy some grass. Help her figure out how much fencing and grass she needs, and help calculate how much ...

The new question-of-the-week is: What has been the best math lesson you have taught and why do you think it was so good? We’ve all taught some great lessons and we’ve also all taught some pretty bad ...